ireland



(No Model.)

B. H. IRELAND.

PUNOHING MACHINE.

No. 468,200. Patented Feb. 2, 1892.

WWII? 3 ii IHIII f um WITNESSES. INVENTOI? ATTURNEYJ.

.UNITED STATES PATENT OFFICE.

ROBERT ll. IRELAND, OF NE\V YORK, N. Y.

PUNCHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 468,200, dated February2, 1892.

Application filed October 8, 1891.

To all whom it may concern.-

Be it known that I, ROBERT H. IRELAND, of New York city, in the countyand State of New York, have invented a new and ImprovedPunching-Machine, of which the following is a full, clear, and exactdescription.

My invention relates to machines for punching beams and channels andother structural shapes, being especially adapted for punchingplate-iron.

The object of the invention is to provide a machine of exceedinglysimple, durable, and economic construction, and capable of beingmanipulated in a manner to carry the punch in engagement with thearticle to be operated upon or to cause the punch to reciprocate abovethe article without engaging with it, as the operator may desire.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a side elevation of the machine. Fig. 2 is a section takenpractically on the line 2 2 of Fig. 1; and Fig. 3 is a detail view ofthe actuating mechanism for the punch, located in its head.

Upon a foundation 10 two beams 11 are longitudinally located, upon whichbeams a suitable number of transversely-located blocks 12 is placed.These blocks, in order torender the structure as light as possible, arepreferably made hollow, as shown. Upon the blocks an upper set of beams13 is located parallel with the lower beams, and these beams carrypillow-blocks 14,]:1'1 which blocks the driveshaft 15 is journaled, thesaid drive-shaft being provided with a fly-wheel 16 and pulleys 17 and18, one of which is fast to the shaft and the other loosely mountedthereon. The drive shaft has also attached to one end a pinion 19, whichmeshes with a gear 20, thereby communicating motion to the punch-shaft21,, to which the gear is secured, the said punchshaft being journaledin a hub 22, which hub has its bearings in the upper beams 13. The hubis projected downward, ordinarily, in the Serial No. 408,119. (Nomodel.)

shape of a casing, and in the central portion of the hub and easing achamber is formed, open at top and bottom; but the shaft 21 may beotherwise journaled, if found desirable. The punch-shaft is providedwith a small crank-arm 23 at or near its center, turning within thechamber of the casing and hub. Around the shaft, within the chamber ofthe casing and hub,a block 24 is located, capable of vertical movement,which block carries at its lower end a head 25, in which the punches 26are introduced and secured. The block at that portion through which theshaft passes is provided with quite a large rectangular opening 27, asis best shown in Fig. 3. Within this opening a rectangular frame 28 isheld to slide vertically, the said frame being essentially of the samewidth as the opening, but of much less length, and within this frame 28a rectangular block 29 is located, which is capable of lateral movement,the said block being journaled upon the crank-arm 23 of the punchshaft21. The block is preferably made in two sections to facilitate itsadjustment upon the shaft.

Below the frame 28, within the opening 27 of the block 24, a button 30is pivoted, which button is capable of being carried upward to avertical position or downward to a horizontal position, as shown inFigs. 2 and 3. This is effected by connecting the shaft upon which thebutton is secured with a pull-rod or lever 31 by means of a link 32. henthe pull-rod or lever is carried outward, the button assumes a verticalposition, as shown in Fig. 2; but when the rod is pushed inward thebutton falls down to the horizontal Fig. 3.

Upon the lower beams 11 a bed is located, upon which the beam or otherarticle to be punched is placed during the operation of punching.

The frame-work and base of the machine may be differently constructedfrom that shown and described if in practice it is found desirable, andthe frame may be of any desired length, so as to accommodate a series ofpunches.

In the operation of the punch, as the punchshaft 21 revolves said shaftimparts to the frame 28 a vertical movement; but the moveposition shownin to cause the punch to engage with any article ment of the frame isnot sufficient to carry it down to an engagement with the button 30 whenthe latter is in its horizontal position, and the block 29 is permittedto have lateral movement in the frame 28 to accommodate the rotarymovement of the shaft. When the button 30 is in its horizontal positionand the machine is in operation, the frame 28 will be reciprocatingconstantly, and likewise the block 24, carrying the punches; but theblock will not be carried down a sufficient distance and that thepunchmay be carried out of en- 7 gagement with the article beneath itwhenever the pull-rod is carried inward.

claim as new and desire to secure by Letters Patent In apunching-machine, the combination, .with a frame composed of an upperand a lower set of girders, transverse blocks separating the upper andlower girders, a table carried by the lower girders, and a stationarycasing supported between the upper girders, of a drive-shaft, acrank-shaft driven therefrom and journaled in said casing, a blockhaving vertical movement in the casing and provided with an openingthrough which the crank-arm of the crank-shaft passes, said bloc-ksbeing adapted to receive a punch, a frame held to slide vertically inthe opening of the block, made of less length than the opening, a blockheld to slide laterally in the frame and having a pivotal connectionwith the crank-arm of the crank-shaft, a button pivoted in the openingof the block, and an arm connected with the button and adapted to carryit to a contact with the frame-or to disengagement therefrom, as and forthe purpose specified.

ROBERT E. IRELAND. Witnesses:

FELIX OROURKE,

Havingthus described my invention, I

CHAS. A. HENNEssnY-

